SALT LAKE CITY — U.S. Senate candidate Dan Liljenquist tried to paint Sen. Orrin Hatch as a big contributor to the nation's debt and other problems, drawing testy responses from his fellow Republican on Friday.

Hatch and Liljenquist sparred in an hourlong debate on KSL Radio that featured heated exchanges over federal spending, Medicare and Hill Air Force Base. It was the pair's only debate ahead of the June 26 primary when voters will decide whether to send the longtime senator back to Washington for a seventh and final term.